[INFO] cloning repository https://github.com/ryosukeeeee/rust_rdbms_scratch [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryosukeeeee/rust_rdbms_scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosukeeeee%2Frust_rdbms_scratch", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosukeeeee%2Frust_rdbms_scratch'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 98e53fe3065b2dd8f2f595b369e2ac25e9c3237c [INFO] checking ryosukeeeee/rust_rdbms_scratch against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosukeeeee%2Frust_rdbms_scratch" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ryosukeeeee/rust_rdbms_scratch on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ryosukeeeee/rust_rdbms_scratch [INFO] finished tweaking git repo https://github.com/ryosukeeeee/rust_rdbms_scratch [INFO] tweaked toml for git repo https://github.com/ryosukeeeee/rust_rdbms_scratch written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ryosukeeeee/rust_rdbms_scratch already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded syn v1.0.71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9f0b69a1c2ea4c4261353dcf9bcb43b725f3826a9b3d92ff2fb32f1d1dd6fde3 [INFO] running `Command { std: "docker" "start" "-a" "9f0b69a1c2ea4c4261353dcf9bcb43b725f3826a9b3d92ff2fb32f1d1dd6fde3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9f0b69a1c2ea4c4261353dcf9bcb43b725f3826a9b3d92ff2fb32f1d1dd6fde3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f0b69a1c2ea4c4261353dcf9bcb43b725f3826a9b3d92ff2fb32f1d1dd6fde3", kill_on_drop: false }` [INFO] [stdout] 9f0b69a1c2ea4c4261353dcf9bcb43b725f3826a9b3d92ff2fb32f1d1dd6fde3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3d19cb9c73413188dd4823b22a5ae8da97807fb9526e15ec85250e350dd6e250 [INFO] running `Command { std: "docker" "start" "-a" "3d19cb9c73413188dd4823b22a5ae8da97807fb9526e15ec85250e350dd6e250", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.71 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking rust_rdbms_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `usage_count` and `buffer` are never read [INFO] [stdout] --> src/buffer.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Frame { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | usage_count: u64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 27 | buffer: Rc, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `usage_count` and `buffer` are never read [INFO] [stdout] --> src/buffer.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Frame { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | usage_count: u64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 27 | buffer: Rc, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_victim_id` is never read [INFO] [stdout] --> src/buffer.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct BufferPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 30 | buffers: Vec, [INFO] [stdout] 31 | next_victim_id: BufferId, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_victim_id` is never read [INFO] [stdout] --> src/buffer.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct BufferPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 30 | buffers: Vec, [INFO] [stdout] 31 | next_victim_id: BufferId, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `size`, `evict`, and `increment_id` are never used [INFO] [stdout] --> src/buffer.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 34 | impl BufferPool { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] 35 | fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn evict(&mut self) -> Option { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn increment_id(&self, buffer_id: BufferId) -> BufferId { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `size`, `evict`, and `increment_id` are never used [INFO] [stdout] --> src/buffer.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 34 | impl BufferPool { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] 35 | fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn evict(&mut self) -> Option { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn increment_id(&self, buffer_id: BufferId) -> BufferId { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `disk`, `pool`, and `page_table` are never read [INFO] [stdout] --> src/buffer.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 84 | pub struct BufferPoolManager { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 85 | disk: DiskManager, [INFO] [stdout] | ^^^^ [INFO] [stdout] 86 | pool: BufferPool, [INFO] [stdout] | ^^^^ [INFO] [stdout] 87 | page_table: HashMap, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_page` is never used [INFO] [stdout] --> src/buffer.rs:91:8 [INFO] [stdout] | [INFO] [stdout] 90 | impl BufferPoolManager { [INFO] [stdout] | ---------------------- method in this implementation [INFO] [stdout] 91 | fn fetch_page(&mut self, page_id: PageId) -> Result, Error> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `disk`, `pool`, and `page_table` are never read [INFO] [stdout] --> src/buffer.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 84 | pub struct BufferPoolManager { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 85 | disk: DiskManager, [INFO] [stdout] | ^^^^ [INFO] [stdout] 86 | pool: BufferPool, [INFO] [stdout] | ^^^^ [INFO] [stdout] 87 | page_table: HashMap, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_page` is never used [INFO] [stdout] --> src/buffer.rs:91:8 [INFO] [stdout] | [INFO] [stdout] 90 | impl BufferPoolManager { [INFO] [stdout] | ---------------------- method in this implementation [INFO] [stdout] 91 | fn fetch_page(&mut self, page_id: PageId) -> Result, Error> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `Command { std: "docker" "inspect" "3d19cb9c73413188dd4823b22a5ae8da97807fb9526e15ec85250e350dd6e250", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d19cb9c73413188dd4823b22a5ae8da97807fb9526e15ec85250e350dd6e250", kill_on_drop: false }` [INFO] [stdout] 3d19cb9c73413188dd4823b22a5ae8da97807fb9526e15ec85250e350dd6e250 [INFO] checking ryosukeeeee/rust_rdbms_scratch against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosukeeeee%2Frust_rdbms_scratch" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ryosukeeeee/rust_rdbms_scratch on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ryosukeeeee/rust_rdbms_scratch [INFO] finished tweaking git repo https://github.com/ryosukeeeee/rust_rdbms_scratch [INFO] tweaked toml for git repo https://github.com/ryosukeeeee/rust_rdbms_scratch written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ryosukeeeee/rust_rdbms_scratch already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d724eb8fea26336be65a048b83086eedb2d225a81d5125b619be68dce11a276a [INFO] running `Command { std: "docker" "start" "-a" "d724eb8fea26336be65a048b83086eedb2d225a81d5125b619be68dce11a276a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d724eb8fea26336be65a048b83086eedb2d225a81d5125b619be68dce11a276a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d724eb8fea26336be65a048b83086eedb2d225a81d5125b619be68dce11a276a", kill_on_drop: false }` [INFO] [stdout] d724eb8fea26336be65a048b83086eedb2d225a81d5125b619be68dce11a276a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 742d1441d706549bb463f3c89ff6ef021f13a3b36d62ddd505296d2562eda155 [INFO] running `Command { std: "docker" "start" "-a" "742d1441d706549bb463f3c89ff6ef021f13a3b36d62ddd505296d2562eda155", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.71 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking rust_rdbms_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `usage_count` and `buffer` are never read [INFO] [stdout] --> src/buffer.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Frame { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | usage_count: u64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 27 | buffer: Rc, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_victim_id` is never read [INFO] [stdout] --> src/buffer.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct BufferPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 30 | buffers: Vec, [INFO] [stdout] 31 | next_victim_id: BufferId, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `size`, `evict`, and `increment_id` are never used [INFO] [stdout] --> src/buffer.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 34 | impl BufferPool { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] 35 | fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn evict(&mut self) -> Option { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn increment_id(&self, buffer_id: BufferId) -> BufferId { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `disk`, `pool`, and `page_table` are never read [INFO] [stdout] --> src/buffer.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 84 | pub struct BufferPoolManager { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 85 | disk: DiskManager, [INFO] [stdout] | ^^^^ [INFO] [stdout] 86 | pool: BufferPool, [INFO] [stdout] | ^^^^ [INFO] [stdout] 87 | page_table: HashMap, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_page` is never used [INFO] [stdout] --> src/buffer.rs:91:8 [INFO] [stdout] | [INFO] [stdout] 90 | impl BufferPoolManager { [INFO] [stdout] | ---------------------- method in this implementation [INFO] [stdout] 91 | fn fetch_page(&mut self, page_id: PageId) -> Result, Error> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/disk.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn new(heap_file: File) -> io::Result { [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 38 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 39 | | heap_file, [INFO] [stdout] 40 | | next_page_id, [INFO] [stdout] 41 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [INFO] [stdout] | [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `usage_count` and `buffer` are never read [INFO] [stdout] --> src/buffer.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub struct Frame { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 26 | usage_count: u64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 27 | buffer: Rc, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_victim_id` is never read [INFO] [stdout] --> src/buffer.rs:31:5 [INFO] [stdout] | [INFO] [stdout] 29 | pub struct BufferPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 30 | buffers: Vec, [INFO] [stdout] 31 | next_victim_id: BufferId, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `size`, `evict`, and `increment_id` are never used [INFO] [stdout] --> src/buffer.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 34 | impl BufferPool { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] 35 | fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | fn evict(&mut self) -> Option { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 65 | fn increment_id(&self, buffer_id: BufferId) -> BufferId { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `disk`, `pool`, and `page_table` are never read [INFO] [stdout] --> src/buffer.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 84 | pub struct BufferPoolManager { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 85 | disk: DiskManager, [INFO] [stdout] | ^^^^ [INFO] [stdout] 86 | pool: BufferPool, [INFO] [stdout] | ^^^^ [INFO] [stdout] 87 | page_table: HashMap, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_page` is never used [INFO] [stdout] --> src/buffer.rs:91:8 [INFO] [stdout] | [INFO] [stdout] 90 | impl BufferPoolManager { [INFO] [stdout] | ---------------------- method in this implementation [INFO] [stdout] 91 | fn fetch_page(&mut self, page_id: PageId) -> Result, Error> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/disk.rs:38:12 [INFO] [stdout] | [INFO] [stdout] 34 | pub fn new(heap_file: File) -> io::Result { [INFO] [stdout] | --------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 38 | Ok(Self { [INFO] [stdout] | ____________^ [INFO] [stdout] 39 | | heap_file, [INFO] [stdout] 40 | | next_page_id, [INFO] [stdout] 41 | | }) [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________| [INFO] [stdout] | [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_rdbms_practice` (lib test) due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rust_rdbms_practice` (lib) due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "742d1441d706549bb463f3c89ff6ef021f13a3b36d62ddd505296d2562eda155", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "742d1441d706549bb463f3c89ff6ef021f13a3b36d62ddd505296d2562eda155", kill_on_drop: false }` [INFO] [stdout] 742d1441d706549bb463f3c89ff6ef021f13a3b36d62ddd505296d2562eda155